How to Monitor Kubernetes with Prometheus and Grafana on RHEL 7 Operating a Kubernetes cluster without monitoring is like running a production database without logs — you will only know something is wrong after an outage has already started. Prometheus is the de facto standard for Kubernetes metrics collection, using a pull-based model where it […]
Introduction How to Configure Btrfs File System on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 9. […]
How to Install ArgoCD on Kubernetes on RHEL 7 ArgoCD is a declarative, GitOps-based continuous delivery tool for Kubernetes. The core principle of GitOps is that the desired state of your cluster is stored in a Git repository, and a controller continuously reconciles the live cluster state against that desired state. ArgoCD monitors your Git […]
Introduction Deploying set up drbd block replication on debian 9 on a Debian 9 Stretch machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before […]
Introduction This guide explains how to Configure ZFS on Debian 9 on Debian 9 Stretch. Debian Stretch uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 9 install with the standard repositories […]
Introduction This guide explains how to Set Up Minio Object Storage on Debian 9 on Debian 9 Stretch. Debian Stretch uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 9 install with […]
Introduction How to Configure iSCSI Target and Initiator on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian […]
Introduction This guide explains how to Install and Configure Samba File Server on Debian 9 on Debian 9 Stretch. Debian Stretch uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 9 install […]
Introduction How to Set Up NFS Server and Client on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from […]
How to Install and Use Helm on RHEL 7 Helm is the package manager for Kubernetes — often described as the “apt” or “yum” of the Kubernetes ecosystem. It allows you to define, install, and upgrade even the most complex Kubernetes applications using reusable templates called charts. A single Helm chart can encapsulate dozens of […]
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